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JS_DLOADR.AUSUHN

August 24, 2018
 ALIASES:

TrojanDownloader:JS/NeutrinoEK.gen!F (Microsoft), JS/TrojanDownloader.Agent.PIC (ESET-NOD32)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be hosted on a website and run when a user accesses the said website.

It deletes itself after execution.

  TECHNICAL DETAILS

File Size:

1,141 bytes

File Type:

JS

Memory Resident:

No

Initial Samples Received Date:

17 Jan 2018

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It may be hosted on a website and run when a user accesses the said website.

Download Routine

This Trojan saves the files it downloads using the following names:

  • bilo{Random 2 Numbers}.exe

Other Details

This Trojan does the following:

  • It may be used by another malware which will also be the one to pass down an argument for it to proceed to its download routine.

It deletes itself after execution.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.912.03

FIRST VSAPI PATTERN DATE:

18 Jan 2018

VSAPI OPR PATTERN File:

13.913.00

VSAPI OPR PATTERN Date:

19 Jan 2018

Step 1

Scan your computer with your Trend Micro product to delete files detected as JS_DLOADR.AUSUHN. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:

Step 2

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.


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